Fire-escape.



J. B. JAKSCH` FIRE EscAPL4 APPLICATIUN FILED vNOV. l2 1914.'

1,251,780. Patented Jan. 1918.

8 SHEETS-SHEET l.

1 20,1 ,7% C ff FIRE ESCAPE.

APPLICATION FILED NOV. I2. I9I4.

www@ Jan. 1, m8.

B SHEETS-SHEET 2 I. B. JAKSCH.

FIRE ESCAPE.

APPLICATION FILED NOV. I2| |914.

lateme Jim. l, HI8.

8 SHEETS-SHEET 3.

@XJR/names J.' B. JAKSCH.'

FIRE ESCAPE.

APPLICATION msn Nov.12.|914.

1,251,780. Patented Jan.1,1918.

J. B. IAKSCH.

FIRBESCAPE.

APPLICATION' FILED Nov.12. :914.

1,251,780. Patente@ Jan. 1, 1913.

8 SHEETS-SHEET 6.

witnesses B. IAKSCH.

FIRE ESCAPE.

APPLICATIUN FILED Nov,|2.19x4.

Patented Jan. 1, 1918.

8 SHEETS-SHEET 8.

@Mitsumi/1 c JOI-IN B. JAKSCI-I, 0F MILWAUKEE, WISCONSIN.

. na-ESCALE.

Specification of Letters Patent.

Patented Jan. 1, 1918.

Application led November 12, 1914. Serial No. 871,738.

Vllo all whom t may concern,.-

Be it lknown that I, JOHN B. Janson, a subject of the Emperor of Austria, residing at Milwaukee, in the county of Milwaukee and State of lVisconsin, have invented certain, new and useful lmprovements in Fire- Escapes, of which` the following is a specification.

My invention relatesvto lire-escapesgand its main object is to provide a novel and highly cliicient device which may be located at a window-opening and serve as a substitute for the usual sashes, due regard being given to compactness and simplicity, number and strength of the various parts employed, considering the nature ofthe invention and numerous functions performed by its different parts.

Among the more specific objects of the invention are v Y First, the provision of means whereby when an operating member is actuated, window sashes will automatically fall to a lowermost position; y

Second, means whereby upon actuation of said operating member, a carriage frame will move to position through the exposed window opening, and whereby escape carriages may travel eXteriorly of the window opening and beyond the building;

Third, means whereby upon actuation of said operating member, a step is lowered to facilitate mounting into the escape carriages;

Fourth, means whereby the carriage trame will be automatically locked through its movement to the projected position;

fifth, means whereby an escape carriage or carriages may be released through movement of said carriage frame to the projected position g l Sixth, means manually operable whereby the main carriage carrying the escape carriages may be released for travel to the position eXteriorly of the window;

Seventh, meansvmanually 'operable whereby the escape carriages may be released for descent while in position eXteriorly of the window; and` Eighth, means whereby kthe speed at which the escape carriages descend is governed or checked.

Additional and minor objects will appear hereinafter .from the description following, taken in connection with drawings accom- Jtrom tion, showing. the.. parts in projected position with one of the escape carriagesdescending on the outside Vof the building;

Fig. 5 isa vertical sectional view of Fig 4. showing the parts in projected position;

Fig. 6 is an end elevation of the lower portion of the. device showing the step lowering mechanism and the step in operative position;

Fig. 7 is a perspective view of thev operating lever and associated parts showing the ever for tilting the track frame and step;

Fig. 8 is a detail view showing one of the resilient or outwardly pressed arms of the main carriage frame in position to positively maintain the frame projected;

Fig. 9 is a. rfragmentary vertical section.l showing the movable Asill for the4 window sashes withdrawn, also, the means for holding the carriage trame against. swinging movement g` Fig. 10 is a fragmentary vertical sectional view showing one of the latches in position for maintaining the upper sash elevated;

Fig. l1 is a rearelevation of the truck and escape carriages, together` with thetrack on which the truck travels, the track being Vshown in section Fig. 12 is a transverse section through the main carriage showing the arrangement of the speed governing apparatus with relation to the main winding drum;

Fig. 13 is a plan view of the'truck' show.-`VA ing it in the position on the projectable frame;

Fig. 14; is a detail perspective view of parts et the track, illustrating the mea-ns operable 'to release the escape carriages;

,l is an inverted plan view of part of the track illustrating the means for maintaining the bar closed, which supportsthe escape carriages position with the..

Fig. 16 is a detail perspective view of the latch means for maintaining the truck on its frame against movement; and,

Fig. 17 is a detail view partly in section illustrating one of the clasp devices for supporting the escape carriages.

Throughout the drawings, like reference' characters designate like or similar parts.

Referring to the drawings, A designates a substantially rectangular frame adapted to be mounted in a window opening. This frame has fastened thereto rails 1 in such manner as to define a rectangular frame to lill the window space. To the frame is attached in any suitable manner a box 2 in which are mounted the parts adapted to be actuated in order to actuate the escape proper. In this boX may be mounted a lamp at 3, which lamp may be continuously lighted or especially lighted at night so that an operator can readily see the location of the parts. 1Within the box is mounted an operating lever comprising a handle 4 and connecting links One of the arms 5 is pivoted at 6, to a bracket 8, while the other arm is pivoted in one side of the boX.

The side rails of frame A are provided with suitable grooves, which are formed by means of strips 9, in which grooves slide upper and lower sashes designated 10 and 11 respectively. The upper sash is adapted to be maintained in its highest position by means of slidable bolt members 12. Bolts 12 slide in suitable brackets 13 fastened to the side rails of the frame A and also slide into recesses 14 provided in the side rails of the sash 10 as shown in Fig. 10. As to the lower sash, the same is maintained in mid-position by means of a slidable sill designated 15.

Means is provided whereby when the operating lever member is actuated, the bolts 12 and sill 15 will be shifted so that the sashes 10 and 11 may fall by gravity into the lowest portion of the frame A and out of the path of movement of a swinging track frame, later to be described.

As to the means for shifting the bolt 12, each bolt has pivoted thereto an arm 16 to which is rigidly fastened by means of a pin 17 extending through one side rail of the frame. A, a crank arm designated 18. This crank arm 18 extends into an elongated slot provided on a link member 19 by means of a looped portion at 20. Across the slot e2;- tends a pin 21, being mounted in the looped portion, which pin is adapted to directly engage the crank arm 18 so as to shift it. Shifting member 19 is pivoted to the operating lever by means of a pivot at 22 provided on an arm 23 fastened directly to one side arm 5 of the operating lever. 1t should be borne in mind that the parts described are connected to and adapted to operate that one of the bolts 12 nearest the operating lever. The opposite boit v12 has connected thereto pivotally an arm 16 having rigidly fastened thereto by means of a pin 17 a crank arm 18. The latter crank arm has pivoted thereto a link or arm 23L see F ig. 2 which is in turn pivoted to ak crank 24 provided on a transverse rod 25, the rod being provided with a crank at 26. To the crank 26 is pivoted an arm or link 27 which is in turn pivoted at 28 to the arm 23 on one of the lever arms 5 as best seen in Fig. 7 It is to be noted that the pivots 22 and 28 are oii'set with respect to the pivot points 6 and 7 so that the necessary leverage is provided for actuation of the parts described.

Now with respect to the means for shifting or sliding the sill 15, the sill has provided on its under side a plurality of racks 29, the teeth of which are adapted to mesh with the teeth of gear segments 30 keyed to the rod 25. Y

A frame for supporting a truck carrying escape carriages later to be described, is provided and comprises a substantially rectangular structure having rails designated.`

31 the two side rails being pivoted as at 32, off center, to the side rails of the frame A. This frame is adapted to be normally maintained closed and within the frame A. Due to the off center connection of said frame, when it is not positively fastened in the frame A, it will move on its pivot and assume a position slightly inclined to the hori- Zontal as shown in Figs. 4 and Therefore, means is provided whereby the frame is maintained locked within the frame A until the operating lever is actuated. The specific means shown consists of a retainer member or rod designated 33 which has provided thereon one or more lugs designated 34, which lugs are adapted for abutment of the escape swinging track frame directly thereagainst. This rod is pivoted in the frame A and extends transversely of said frame and is located in a sill designated 35. When said carriage frame is fastened within frame A, the lugs 34 project above the upper surface of the sill 35 and when the frame is released, the lugs 34 are below the 'surface of said sill 35. The specific means for shifting the retainer rod will be later described as it cooperates with means for shifting another part, namely a step.

Said step is designated 36 and forms part of a step device. Brace arms are pivoted to the step 36 and designated 37, said arms being also pivoted at 38 to the side rails of frame A. Supporting arms or vbars 39 are fastened to the step iand projecting laterally from each of them are pins designated 40. *The pins 40 are mounted for travel in elongated slots 41 provided in the side railsof frame A. V0n the inner side of said side rails, wearl` plates 42 are provided and these also have elongated slots lwhich register with the elongated slots 41 in the side rails'.

lever shown in Fig. 7.

A lever 43 is mounted in the path of movement of the last-mentioned 'pin 40, which lever is pivoted at 44 to a bracket 45 fastened to the frame A. Through the movement of this lever 43, the retainer rod or member 33 is adapted to be shifted'and in order to enable this function to take place, a" link or arm 45 is pivoted to lever 43 and pivoted to a crank arm 46 rigidly fastened on the rod 33. A spiral spring 47 is connected to the lever 43 and to the frame A, serving to normally draw said lever 43 downwardly and accordinglythe retainer rod 33 in position with its lugs 34 projected above the lupper surface of the sill 35.

As the pins 34 move out of the path of movement of the swinging track framecomposed of the rails 31, said frame due to its off center pivotal mounting, will move to the position shown in Figs. 4 and 5. Support arms or brace rods designated 4S are provided for the frame last mentioned and are pivoted thereto as at 49. The extent of movement of the brace rods 48 is limited through the provision of the links at 50 which links arel pivoted together at 51,one

set being pivoted to the rails 31 at 52 and the other set being-pivoted to the brace rods at Brace rods 48 are loosely mounted on the pivot 49 and have a slight lateral and pivotalmovement thereon in horizontal plane. Such lateral movementis against the tension of leaf springs designated 54 in Figs. l and 3, bearing against the'brace rods 48 1 and against suitable projections on the pivots 49. These rods 48 after they have moved past the frame A are adapted to be sprung laterally by means of the springs54 into en- *gagement with keepers 55 provided on theY frame A as shown in Fig. 8. In orderto hold the brace rods 48 in proper position during swinging movement of the swinging track frame, holders 56 are pivoted to the swinging track frame.r These holders 56 shown in Fig. 14, are adapted to be actul ated to release the rods 48 by means later to be described.

Escape carriages B of any suitable design are'eniployed, these escape carriages being pendentlv supported as shown in the drawings. lVheii the parts are folded, these carriages B are adapted to be located `and supported in convenient position. To this end an auxiliary frame is provided on the swinging track frame and consists of side bars 57, carrying a transverse bar 58 on which'the carriages B are adapted to rest as seen in Fig. 3. This transverse bar 58 is pivoted at f one end and detachably vwheels or rollers 7 9.

fastened at its other end, sol that it may be released at the proper time through movement of the swinging track frame. As to the specilic fastening means shown, a hasp lug 59 (shown in Fig. 14) is provided on the bar 58 which is adapted to enter a keeper 60 fastened to one of the bars 57. The keeper lugs have registering slotswhich are adapted to be entered by a-lock member shown in the form of a bell crank lever designated 61, the leverbeing pivoted to the bracket 62 fastened to one rail 57. It will readily be understood that only one arm of the lever 61 enters the openings of the keeper 60. The other arm of this leveil V61 has pivoted thereto a link 63 Vwhich is in turn pivoted to a crank arm 64 provided on a shifting member or rod 65, the latter being Journaled in brackets 66 mounted on radjacent parts of the swinging track framei` This shifting arm or rod at one end is provided with an angle arm or lug 67. Upon movement of the swinging `track i frame'from a perpendicular to a. horizontal position,` lug 67 is adapted to strike against an abutment 68`provided on the frame having the rails l, see Fig. 1, for the purpose of rocking the member 65, accordingly shifting the bell crank lever 61 and releasing orV unlocking' the bar 58 so that the carriages B will hang pendently from the swinging track frame.

The `holders previously referred to and designated 56 are adapted to be shifted upon movement of the shifting member 65 so as to release the brace rods 48. To this end, a link 69 is pivoted tothe crank 64 and to a bell crank lever 70 pivoted to the swinging track frame. Bell crank lever 70 has pivoted thereto a connecting arm or rod 71 which is pivoted to one of the holders 56, as in Fig. 14. Also connected to the crank 64 is an arm 72 pivoted to a lever 7 3 pivoted to the swinging track frame and to a link 74. The latter link is pivoted to a bell` 'ber 56. Y

The escapecarriages B .are carried by a slidable carriage or truck designated C. This truck has a body designated 77, also axles designated 78 on which are mounted The side rails 31 of the swinging track frame have provided on their inner facessuitable track `rails 80 on which the wheels 79 travel asbest seen in Figs. 11 and 13. This truck is normallyy locked at the inner end of the swinging track frame by means of a pivoted latch designated 81 which has a hook which engages a hook'of a 'lug 82 carried by the body 77. This slidable carriage is not adapted lto travel untilthe carriages B 'or one of them is occupied; The' occupantinay operate suitable means to release the truck, which means may be as follows. To the latch 8l is pivoted a link 83, which link is pivoted to a lever 84 having a pendent cord member connected thereto, which cord member passes through suitable guide members 86 on one of the rails 57 and at its free end is provided with a grip ring designated 8T. A spring 88 as shown in Fig. 16, is fastened to the swinging track frame and to the latch 81, serving to normally maintain said latch 81Y in engagement with the lugr 82.

Means is provided to retard the sliding movement of the truck C after its release subsequent to actuation of the latch 81, which means consists of a flexible memberor members 89 connected to the body 77 of the carriage and connected to and woundA around a roller or drum 90 mounted for rotation in the side rails 81 of the carriage frame. Y

The carriages B are supported from the truck or carriage C as stated and have directly connected thereto cables or ropes designated 91, passing over suitable drums and other parts as will now be described. The cables of the carriages B are fastened to suitable drums 92 mounted in the body 77 the cables being partially wrapped around said drums. Said cables after passing from the drums 92 pass over guide pulleys 93 carried by the body 7 7 as shown in Fig. 11, and then pass throigh eyelets in a guide frame 94 carried by the frames or carriages B and then over pulleys 95 mounted in the frames or carriages B, then through other eyelets of the frame 94 and are then wrapped around sections of a main drum designated 96, the Cables also being securely fastened to said drum 96. It will be noted from an inspection of Fig. 13 that the cables of the several carriages are wrapped about separate portions of the central drum 96, which portions are formed by a dividing flange 96a.

1n addition to being supported by the cables 91, the frames or carriages B are adapted to be supported by clasp devices generally designated D and supported in any suitable manner from the truck C as by means of the hangers 97. These clasp devices are adapted to engage rods 98'provided on the frame 94. By engagement with the rods the clasp devices positively hold the carriages B against descent. After the truck C has traveled to its outermost position and it is desired that the escape carriages B descend, means are then manually operated so that the rod 98 will be released from the clasp devices D. The rods 98 are held in transverse slots 99 of latch members 100 as shown to advantage in Fig. 17 pivoted to the body of the clasp devices at 1012i. The clasp body at its lower extremity is suitably cut-away to provide a central groove to guide the rods 98 to proper position so as to be received in the slots 99 upon return movement of the latches to normal position. The latches 100 have a transverse connecting portion for the side plates thereof in which the slots 99 are formed. The transverse portion has a weight 101 fastened on its under side, the weight serving to normally maintain the latches in the lowermost position. To the transverse portion is suitably fastened a .flexible element in the form of a cord or chain 102. This cord or chain is connected to a shifting lever or member designated 103, terminating exteriorly of the clasp devices in a handle 104.

`Upon actuation of the handle 104 the latches 100 will be shifted to release the rods 98 and in order that the flexible element 102 will be properly shifted and a sufficient amount thereof taken up, an angle arm 105 is provided which is adapted to bear directly against the element 102 as shown in Figs. 11 and 17. With the construction shown, one of the escape carriages is released and permitted to descend to the ground. Thereupon the other escape carriage is released with an occupant therein, the weight of the occupant serving to cause the escape carriage to travel downwardly. During such downward travel, the other carriage is elevated.

Suitable means is provided in order to govern or check the descent of the carriage. One form of means may be as follows. On the drum` shaft which may be designated 106, is fastened a gear wheel 107 which gear wheel meshes with a gear wheel 108 carried by a shaft 109 suitably supported in the truck C. This shaft 109 has mounted rigidly thereon a brake `pulley designated 110. @ver this pulley passes a flexible brake element designated 111. This element at its ends is connected to a lever 112 as at 113. This lever 112 is pivoted on the shaft 106 and on one side of said shaft the connections 113 are made while on the other side of the shaft a link 114 is pivoted to the lever at 115. The link 114 is pivoted to a lever 116 pivoted at 117 to one of the clasp devices. Truck C has provided thereon a rod 118 on which is mounted a suitable governor device, the one shown having a transverse bar 119 fastened to the rod 118 and having pivoted thereto arms 120, each having a weight 121 mounted on its lower end. A transverse bar 122 which has Connection with a weight 123 is adapted to slide on the shaft 118. The bars 119 and 122 rotate with the governor rod 118, the bar 119 being fixed thereon while the bar 122 is slidable thereon. Links 124 are pivoted to the arms 120 and arm 122 and when the weights 121 fly outwardly, under centrifugal force the bar 122];is elevated. Movable with the governor devlcejs a pulley 125 on which normally rests a bifurcated end 126 of the lever 116. Thus itwill be understood that as the governor rotates andthe weights 121 move upwardly, the pulley 1 25 will shift the lever 110, link 114, lever. 112, and brake band 111, causing the latter to tightly bindv against the pulley 110, thereby retarding,L the rotation ofthe shaft 106 and accord- The governor rod 118 isrotated by a beltV 1091*,

ingly the rotation of the drum 9G.

which passes over a sheave 109'LL on the shaft 109 and over thepulley 125 on lthe rod 118.

It may be mentioned that suitable signal alarm means may be provided` in connection with the apparatus. For instance, an alarm such as designated 127, see Fig.v 4, may be operated by pressing a. button 12,8 in Figs. 2 and 6 so as to sound an alarm. The button 128 is adaptedto be operated upon the downward movement of the operating lever 127 which carries a lug 129 on one arm as shown in Fig. 7 for. pressing the button. It might also be mentionedY that, after downward movement of the sashes l and 11, the sash 11 is adapted toy be moved upwardly with thesash 10, themeans accomplishing this feature as shown, being a lug 130 provided on sash 11 and a lug 131 provided on sash 10, the latter lug being adapted to engage the lug. 130 during the sliding movement of sash 10.

The operation of the apparatus is as follows z* The. actuating lever or member comprising the parts 4 and 5 is pulled downwardly, shift-ing the. arm 19 which arm through the medium ofthe several parts previously specically described, shifts the bolt 12 so that they disengage the slots in the Isash 1U whereupon the sash falls automatically into the lower portion of the frame after sill 15 is withdrawn from the path of the sash. Also such movement of the operating lever shifts the link or arm 27 which in turn shifts the rod turning the segments 30 thereon, which due to their engagement,

with the racks 29 cause the sill 15 to slide out of thepath of the sash 11 whereupon the said sash 11 slides to the lower portion. of the frame Si. ,firm or link 41 is also shifted or moved downwardly uponactuation of the lever and this arm 41 moves the' pins downwardly thereby causing the arm 39 to move to the horizontal position thus supporting the step 36 and the brace arms 37 to move to a diagonal position. During the downward movement of the step device, the pi'n 40 which has the arm 41 attached thereto moves or strikes the lever 43, elevating it at one end and accordingly elevating or moving upwardly a slight distance, the arm` which due to, its pivotal connection with the crank 46, causes said crank 4G to shift the rod 33 moving the lug 34 out of the path off movement of the sivasiilg track frame,

Said carriage` frame thereuponswings on the pivot 32 and assumes laihorizontal'position as seenl in Figs4and'5- `When the frame just described hasmoved a sufficient extent, the ybrace rods 48 are sprung'latera'llyl by means of the springv .54 so that said brace. rods will engage the keepers4 55 in order to prevent return movement of the swinging track frame to folded' position; Alsddur.- ing the movementy of the swinging track frame to the horizontal positiomthe crank G7I strikes `against 'the lug-68 thereby shifting the rod65 and accordingly' the several levers which operate the rods 71', 74, 76- and` the/'holders 56 for the brace rods 48.- Itis. obvious, of* course, that Athis action takes place before the rods'48. spring laterally as they must be' released bythe holders.` Throughthe movement of the rod 65,'ar1n @Sis` shifted'A so that it-.movesthe bell crank lever or. lock member 61d out of engagementV with the vslots of theJ` keeper and lug59, whereupon the barj58 swings downwardly fronritsmpivot so thatv the escape carriages. B willv also swing downwardly Vandv hang. pendcntly. inasmuch as the carriages are now pendent and the Vstep 36 is adjacent` the carriages, a person may walk onto'the step and therefrom mount one ofthe escape carriages. Then the carriage is occupied, the occupa-ntl moves the grip ring 87 downwardly so 'that theflexible element 85, lever. 84, link 83, will shift the latch 81, releasing the lug 82, whereupon the truck C maybe moved to outermost position beyond the frame window. It is to be noted fromV Figs. 4k and 5 that they carriage frame inL its projected position is inclinedto a slight extent] so that the truck C willv readily travel outwardly afterthe latch 81 disengages the lug 82.l fter theV truck has traveled to the. outermost position, the occupant grasps the handle 104, turns the same so that the' crank 105. andV chain 102 will shiftthe latch100, thereby releasing the. rod'98, whereupon the escape carriageisfree to travel downwardly. One carriage is permitted tov descend to the fullest extent before the other,y carriage starts to descend. As the` carriage descends, the drum 96 pays out theproper amount of cable 91, When one carriage has descended the other carriage is then released` and'de'- scends, such action causing the paid o ut cable to be again wound around the. drum andaccordingly raising the previouslylowered carriage. As the carriages descend, their movement is checked by the governor device previously specifically described; As the governor device moves, it shifts thelever 116 and accordingly the link 114 andarm. 112, thereby moving the belt or flexible element 1,11 relatively tothe pulley 110v tothe proper extent, in combination `with the pulley exerting a. braking action.

The device illustrated. t'ojbe enderweflf as being but one embodiment of my invention, but the scope of the invention is not limited thereto, as numerous changes in the construction, arangement and functions of the various parts may be made without departing from the spiritand scope of the invention as defined in appended claims.

Having thus described my said invention, what I claim as new and desire to secure by Letters Patent is 1. In a fire-escape, a fixed frame, a projectable frame supported thereon, a brace pivoted to the projecting portion of the frame, a keeper on the stationary frame for the brace, and means for urging the brace into engagement with the keeper to anchor the brace when the projectable frame assumes the final position.

2. In a fire escape, a fixed frame, a projectable frame pivotally carried by the fixed frame, a lever mechanism for initiating the projection of the pivoted frame, a prop for holding the pivoted frame in a projected p0- siticn, a revoluble shaft having a projection for abutting the pivoted frame when closed in the fixed frame, and means for actuating the revoluble shaft by the operation of the lever mechanism.

3. In a fire escape, a sash, bolt means to lock said sash in a closed position, a second sash, a receptacle for receiving said second sash, a sill for locking said second sash in a closed position, a movable frame, escape means carried by said frame, an operating member, and means to shift said bolt means, sill, and frame through movement of said operating member in one direction.

4l. In a fire escape, a frame, a frame movable relatively thereto, escape means carried by the second frame and adapted to be moved into an operative position by movement of said second frame, fastening means for said escape means, said fastening means normally holding the escape means against movement, and means for releasing said fastening means through movement of said movable frame.

5. In a fire escape, the combination with a frame, a frame movable relatively thereto, a movable truck on the second frame adapted to be moved into an operative position by movement of the second frame, an escape carriage carried by the truck, means for fastening the truck against movement relatively to the second frame, and means for releasing the fastening means through movement of the second frame.

6. In a fire escape, a fixed frame, a projectable frame pivotally carried by the fixed frame, a lever mechanism for initiating the projection of the pivoted frame, a revoluble shaft having a lug for abutting the pivoted frame when closed in the fixed frame, and a connection between the revoluble shaft and the lever mechanism whereby the pivoted.

frame is freed upon actuation of the lever mechanism.

7. In a fire escape, a fixed frame having a sash, a proj ectable frame carried by the fixed frame behind the sash, a sill for supporting the sash, a revoluble shaft having a lug for abutting the pivoted frame, a receptacle on the fixed frame beneath the sash, and means for simultaneously rocking the revoluble shaft to release the pivoted frame and moving the sill to permit sash to drop into the receptacle.

8. In a fire escape, a fixed frame, a sash in the fixed frame, a projectable frame pivoted to the fixedrframe behind the sash, a sill for supporting the sash above the receptacle, a revoluble shaft having a lug for abutting the pivoted frame, rack and quadrant devices correlated with the sill, and a lever mechav nism for simultaneously operating the revoluble sha-ft to free the pivoted frame and operate the quadrant to displace the sill from beneath the sash.

9. In a re escape, a fixed frame, a sash in the fixed frame, a pi'ojectable frame pivoted to the fixed frame behind the sash, a sill for supporting the sash above the receptacle, a revoluble shaft having a lug for abutting the pivoted frame, rack and quadrant devices correlated with the sill, a lever mechanism for simultaneously operating the revoluble shaft to free the pivoted frame and operate the quadrant to displace the sill from beneath the sash, and a normally folded step projectable simultaneously through the operation of the revoluble shaft and sill.

10. In a fire escape, a fixed frame, an upper and lower sash in the frame, a bolt for locking the sashes together, a receptacle beneath the sashes, a sill for supporting the lower sash above the receptacle, a revoluble shaft having a lug for abutting the pivoted frame, rack and quadrant devices co-related with the sill, and a lever mechanism for simultaneously rocking the revoluble shaft.v

to free the-pivoted frame, retract the locking bolt from the sashes and operate the quadrant to move the sill from beneath the sashes.

11. In a fire escape, a fixed frame having a receptacle, an upper and lower sash in the frame, a bolt for locking the sashes together, a sill for supporting the lower sash above the receptacle, a rack on the sill, a quadrant intermeshed with the rack, and means for simultaneously retracting the locking bolt and operating the quadrant to displace the sill fre-m beneath the lower sash.

12. In a fire escape, a. fixed frame having an opening and a receptacle, a projectable escape truck carrying frame pivoted to the fixed frame, a sash in front of the pivoted frame, a sill for supporting the sash above the receptacle, a lug for locking the pivoted frame, a step normally folded within the fixed frame beneath the xed frame opening, and means for sinmltaneously meving the locking lug and displacing the sill and extending the step beneath the fixed frame opening.

13. In a fire escape, a fixed frame having an opening and a receptacle, a sash for closing the opening, a sill for supporting the sash above the receptacle, a projectable frame pivoted to the fixed frame behind the sash, a truck supporting an escape carriage on the pivoted frame, a step folded in the fixed frame below the opening, and means for displacing the sill and extending the step whereby the pivoted frame may be projected and the escape carriage reached through the opening.

let. In a fire escape, a fixed frame having an opening, a projectable frame pivoted on the fixed frame in the opening, a truck having an escape carriage supported on the upper end of the pivoted frame,a lock on the.

fixed frame in normal engagement with the pivoted frame, and means for retract-ingthe lock whereby the pivoted frame assumes the projected position through the medium of the weight of the truck and escape carriage at the upper end.

15. In a fire escape, a` fixed frame having an opening, a. projectable frame pivoted on the fixed frame in the opening, a truck haying an escape carriage supported on the upper end of the pivoted frame, a lock on the fixed frame in normal engagement with the pivoted frame, means for retracting the lock whereby the pivoted frame assumes the projected position through the medium of the weight of the truck and escape carriage at the upper end, and a prop for holding the pivoted frame in the projected position.

16. In a fire escape, a. fixed frame having an opening, a projectable frame fitted in the opening and pivoted to the fixed frame, a truck disposed at the upper end of the pivoted frame, an escape carriage carried by the truck and supported in an inaccessible position on the pivoted frame, a lock on the fixed frame in engagement with the vpivoted frameand means for retracting the lock to permit the pivoted frame to assume the projected position through the action of the weight of the truck, and remove the escape carriage support whereby the escape carriage assumes an accessible position.

17. Inv a fireescape, a fixed frame having an opening, a projectable frame fitted in the opening and pivoted to the fixed frame, a truck disposed at the upper endv of the pivoted frame, an escape carriage carried by the truck and supported in an inaccessible position on the pivoted frame, a. lock on the fixed frame in engagement with the pivoted frame, means for retracting the lock to permit the pivoted frame to assume the projected positionV through the action of the weight ofthe truckv andi remove-.theescapei carriage supporty whereby the escape carriage assumes an accessible position, and a step simultaneously projected beneath,r the opening whereby the escape carriage may be reached.

18. A fire escape including a fixed frame, a projectable frame pivoted in the fixed frame, an escape carriage truck located at the upper end of the pivoted frame, the weight of said truck being adapted to move the pivoted frame to the projected position, anda latch for holdingl the truck at the upper end of the pivoted frame, said latch being adapted to release the truck by manual operation to permit the truck to assume a position at the lower end of the pivoted frame. f

19. A fire escape including a fixed frame, a projectable frame pivoted inn the fixed frame, an escape carriage truck located at the upper end of the pivoted frame, they weight of said truck being adapted to move the pivoted frame to the projected position, a latch for holding the truck at the upper end of the pivoted frame, said latch being adapted to release the truck by manual operation to permit the truck to assume a position at the lower end of the pivoted frame, and means for retarding the movement of the truck to the lower end of the pivoted frame.

20. A fire escapeincluding a fixed frame, a projectable frame pivoted in the fixed frame, an escape carriage truck located at the upper end of the pivoted frame, the weight of said truck being adapted to move the pivoted frame to the projected position,

a latchy for holding the truck at the upper end of the pivoted frame, said latchbeing adapted to release the truck by manual operation to permit the truck to assume a position at the lower end of the pivoted frame, means for retarding the movement of the truck to the lower end of the pivoted frame,

and a lock for holding the truck in its posi-- tion at the lowerfend of the pivoted frame.

2l.4 In a fire escape, a fixed frame, a projectable frame pivoted in and normally occupying the fixed frame, an escape carriage truck located at the upper end of the pivoted frame, the weight of the truck effecting the projection of the pivoted frame when saidv frameis released, a latch manually operable to permit the truck to move to the lower end of the. pivoted frame, a friction roller at the upper end of the pivoted frame, and a flexible connection between the truck and the friction roller.

22.y A fire escape including a. fixed frame, a projectablev frame pivoted in the. fixed frame, theprojectable frame being adapted to automatically assume a substantially horizontal position in the fixed frame, a nor. mally folded prop on theprojectable frame, a; holder for the,prop an @meansoperatedA upon movement of the projectable frame to the substantially horizontal position for releasing the prop.

23. A fire escape including a fixed frame, a projectable frame pivoted in the fixed frame, the projectable frame being adapted to automatically assume a substantially horizontal position in the fixed frame, a normally folded prop on the projectable frame, a holder for the prop, means operated upon movement of the projectable frame to the substantially horizontal position for releasing the prop, and means for urging the prop into engagement with the fixed frame.

2st. A fire escape including a fixed f "ame, a pivoted frame normally occupying and locked in the fixed frame, means for unlocking the pivoted frame whereby the pivoted frame automatically assumes a substantially horizontal position, a prop carried by the pivoted frame and normally folded thereagainst, a lug on the pivoted frame for holding the prop, and a trip on the fixed frame for striking the lug and releasing the prop as the pivoted frame assumes its substantially horizontal position.

25. A re escape including a fixed frame, a pivoted frame normally occupying and locked in the fixed frame, means for unlocking'the pivoted frame whereby the pivoted 'frame automatically assumes a substantially horizontal position, a prop carried by the pivoted frame and normally folded thereagainst, a lug on the pivoted frame for holding the prop, a trip on the fixed frame for striking the lug and releasing the prop as the pivoted frame assumes its substantially horizontal position, and a keeper on the fixed frame for receiving and holding the end of the prop.

Q6. A fire escape including a fixed frame, a pivoted frame normally occupying and locked in the fixed frame, means for unlocking the pivoted frame whereby the pivoted frame automatically assumes a substantially horizontal position, a prop carried by the pivoted frame and normally folded thereagainst, a lug on the pivoted frame for holding the prop, a trip on the fixed frame for striking the lug and releasing the prop as the pivoted frame assumes its substantially horizontal position, a keeper on the fixed frame for receiving and holding the end of the prop, and a resilient element for urging the end of the prop into engagement with the keeper.

27. A fire escape including a fixed frame, a pivoted frame normally occupying the fixed frame, a lock for the pivoted frame, an escape carriage truck at the upper end of the pivoted frame, an escape carriage carried by the truck, the carriage being normally inaccessible, means for holding the carriage in the inaccessible position, and means for releasing the carriage when the pivoted frame is released by the lock and is permitted to assume a horizontal position by the weight of the truck.

28. A fire escape including a fixed frame, a pivoted frame normally occupying the fixed frame but being projectable by gravity, a normally inaccessible escape carriage supported on the pivoted frame, and means operable to permit the escape carriage to assume an accessible position when the pivoted frame is projected.

29. A fire escape including a fixed frame, a pivoted frame normally occupying the fixed frame and adapted to be moved to a horizontal position with respect to the fixed frame by gravity, an escape carriage normally inaccessibly located at one end of the pivoted frame, means operable to permit the carriage to assume an accessible position upon movement of the pivoted frame to the horizontal position, and means for advancing the carriage to the other end of the pivoted frame.

80. A fire escape including a fixed frame, a pivoted frame normally occupying the fixed frame and having an escape carriage truck at one end the weight of the truck being adapted to move the pivoted frame to a horizontal position, a normally inaccessible escape carriage carried by the truck, means operable to permit the escape carriage to assume an accessible position upon movement of the pivoted frame to the horizontal position, means for permitting the advancement of the truck to the other end of the pivoted frame, and a clamp for preventing the descent of the escape carriage.

3l. A fire escape including a fixed frame, a pivoted frame normally occupying the fixed frame and having an escape carriage truck at one end, the weight of the truck being adapted to move the pivoted frame to a horizontal position, a normally inaccessible escape carriage carried by the truck, means operable to permit the escape carriage to assume an accessible position upon movement of the pivoted frame to the horizontal position` means for permitting the advancement of the truck to the other end of the pivoted frame, a clamp for holding the escape carriage in suspension, and means for releasing the clamp to permit the descent of the carriage.

32. A fire escape including a fixed frame, a pivoted frame normally occupying the fixed frame and having` an escape carriage truck at one end, the weight of the truck being adapted to move the pivoted frame to a horizontal position, a normally inaccessible escape carriage carried by the truck, means operable to permit the escape carriage to assume an accessible position upon movement of the pivoted frame to thelhorizontal position, means for permitting the advancement of the truck to the other end of the pivoted frame, a clamp for holding the escape carriage in suspension, means for releasing the clamp to permit the descent of the carriage, and a brake mechanism for l' controlling the speed of descent of the cartaneously initiate the projection of the 111) frame and the extension of the step so that the escape carriage may be reached.

In testimony whereof I affix my signature in presence of two Witnesses.

JOHN B. JAKSCH., Witnesses:

S. JAZDZEWSKI, S. J. JAZDZEWSKI.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

